Joel farnam



UNITED STATES PATENT -FFICE JOEL FARNAM, OF STILLIVATER, NEW YORK.

CONSTRUCTION OF DOUBLE-ACTING PUMPS FOR RAISING AND FORCING WATER.

Specification of Letters Patent No. 2,345, dated November lO, 1841.

T0 all wit-0m t may concern:

Be it known that I, J onL FARNAM, of Stillwater, in the count-y ofSaratoga and State of New York, have invented a new and usefulImprovement in Pumps for Raising lVater, which is described as follows,reference being had to the annexed drawings of the same, making part ofthis specification.

Figure l is a vertical section showing the interior of the cylinder,side trunk, receiving chamber and conducting tube. Fig. 2 is a top viewof the improved receiving and discharging chambers showing the sixapcrtures in the top of the same when the cylinder, side trunk andvalves are removed therefrom, the position of the partitions being shownby dotted lines I J. Fig. 3 is a vertical transverse section of thereceiving chambers and valve cup.

Similar letters refer to corresponding parts.

The cylinder A, piston B, side t-runk C, and valve cap D being made likeothers in use need not therefore be particularly described.

The improvement consists principally in the construction of a cast ironbox E partitioned oft' into three chambers F G H by vertical partitionsI J, one of which chambers F being designated to receive the water asraised from the cistern or well and the two chambers G H into which itis discharged from said receiving chamber F from whence it is forced toany place desired, the top plate of said box (upon which the cylinder,trunk, and cap are secured) being perforated with six apertures numberedl, 2, 3, 4l, 5, 6 through which the water passesfirst through theapertures l, l, covered by valves opening upward then down through theopenings 2, 5, into the receiving chambers, then upward through theopenings 3, G, covered by valves opening upward, into the cup D and airvessel by the action of the piston, the bottom plate of said box beingperfo-rated for the water pipe K leading into the receiving chamber Fand the top plate having flanges L by which it is bolted to the flangesM of cylinder, trunk and cap, the cylinder A covering the two aperturesl, Q, and the valve cap corresponding with cylinder covering theaperture 3, and the side trunk C covering' the apertures 4L, 5, and thecap the aperture 6 so that when the piston B rises as represented in thedrawing the air is exhausted in the cylinder and its place supplied bythe water rising from the well through the pipe K into the receivingchamber F and the aperture l, whose valve V it raises, into the cylinderA. On the return of the piston t-he valve V over the aperture closes andthus causing it to be forced down through the aperture 2 having novalve, into the receiving chamber G and up through the aperture 3lifting its valve V into the cap D from where it is forced through apipe to any place desired. While the piston B is thus descending avacuum is formed in the cylinder above the piston at A2 into which thewater rises through the aperture 4, whose valve VA1 it then raises,passing through the side trunk C into the upper part of the cylinder A2with which itcommunicates at C2 and as the piston raises the water isforced back into the trunk and down closing the valve V4 over theaperture t through which it entered causing it t-o pass through theaperture 5 having no valve into the chamber H and up through theaperture 6 whose valve V6 it raises, into the cap D thus producing analternate double stroke and by means of an air vessel a constant streamof water, and thus doing away with the usual lower set of caps, packing,bolts, &c., reducing the number of joints and lessening thereby theliability of leakage, complexity, and expense, the said single cast boxbeing very simple, cheap, durable, and easily managed and kept in order.

1What I claim as my invention, and which I desire to secure by LettersPatent, is-

rlhe before described construction of the box E bolted to the bottom ofthe cylinder A and side trunk C and cap D for simplifying and reducingthe expense of the pump I and its liability to get out of order asherein set forth, that is to say making a single solid cast iron boxdivided into three chambers by a transverse partition I forming areceiving chamber and a longitudinal partition J extending from saidtransverse partition to one end of the box forming the two dischargingchambers having t-he top perforated with six apertures two over thefirst mentioned chamber and tWo over each of the other chambers andhaving the bottom perforated With a single aperture leading to thereceiving chamber for the admission of the Water to the saidchamber-doing away with the lower or under caps and Valve plates andValves and the necessary packing and bolts for securing the same in themanner and for the purpose hereinbefore set forth.

JOEL FARNAB. Witnesses:

EDWIN MA1-1ER, CLEMT. T. CooTE.

